High-activity oxygen carrier and preparation method and application thereof

A technology of oxygen carrier and carrier, applied in chemical instruments and methods, metal/metal oxide/metal hydroxide catalysts, inorganic chemistry, etc. Live and other problems, to achieve the effect of less carbon accumulation, good stability and high activity

Active Publication Date: 2014-05-14
CHINA PETROLEUM & CHEM CORP +1
View PDF3 Cites 12 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Relatively speaking, the comprehensive performance of NiO oxygen carrier is better, but the dispersion of metal oxides in the oxygen carrier is not high, and t

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0017] Example 1

[0018] Take a certain amount of silica gel raw material into the container, add deionized water to stir and wash, set the speed of the stirring device to 400 r / min, wash for 1 hour and then perform suction filtration. Then wash again under the same conditions for a total of 3 times. Put the washed clean silica gel particles in a blast drying box for drying treatment, set the temperature at 120°C, and dry for 12 hours. After screening, take 40-60 mesh SiO 2 The pellets were calcined at a temperature programmed in a muffle furnace, and finally calcined at 900°C for 4 h. Using over-volume dipping method, 1mol . L -1 Of calcium nitrate loaded on SiO 2 On top, then dried at room temperature, then dried at 100℃ for 8 hours, and then calcined at 800℃ for 4h to obtain CaO / SiO 2 . 1mol . L -1 Ni(NO 3 ) 2 ·6H 2 O loaded on CaO / SiO 2 On top, then dried at room temperature, then dried at 100℃ for 8 hours, and then calcined at 1000℃ for 4h to obtain NiO / CaO / SiO 2 For the ...

Example Embodiment

[0019] Example 2

[0020] Take a certain amount of silica gel raw material into the container, add deionized water to stir and wash, set the speed of the stirring device to 400 r / min, wash for 1 hour and then perform suction filtration. Then wash again under the same conditions for a total of 3 times. Put the washed clean silica gel particles in a blast drying box for drying treatment, set the temperature at 120°C, and dry for 12 hours. After screening, take 40-60 mesh SiO 2 The pellets were calcined at a temperature programmed in a muffle furnace, and finally calcined at 900°C for 4 h. Using over-volume dipping method, 1mol . L -1 Of calcium nitrate loaded on SiO 2 On top, then dried at room temperature, then dried at 100℃ for 8 hours, and then calcined at 800℃ for 4h to obtain CaO / SiO 2 . 1mol . L -1 Ni(NO 3 ) 2 ·6H 2 O loaded on CaO / SiO 2 On top, then dried at room temperature, then dried at 100℃ for 8 hours, and then calcined at 1000℃ for 4h to obtain NiO / CaO / SiO 2 For the ...

Example Embodiment

[0021] Example 3

[0022] Take a certain amount of silica gel raw material into the container, add deionized water to stir and wash, set the speed of the stirring device to 400 r / min, wash for 1 hour and then perform suction filtration. Then wash again under the same conditions for a total of 3 times. Put the washed clean silica gel particles in a blast drying box for drying treatment, set the temperature at 120°C, and dry for 12 hours. After screening, take 40-60 mesh SiO 2 The pellets were calcined at a temperature programmed in a muffle furnace, and finally calcined at 900°C for 4 h. Using over-volume dipping method, 1mol . L -1 Of calcium nitrate loaded on SiO 2 On top, then dried at room temperature, then dried at 100℃ for 8 hours, and then calcined at 800℃ for 4h to obtain CaO / SiO 2 . 1mol . L -1 Ni(NO 3 ) 2 ·6H 2 O loaded on CaO / SiO 2 On top, then dried at room temperature, then dried at 100℃ for 8 hours, and then calcined at 1000℃ for 4h to obtain NiO / CaO / SiO 2 As for t...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses an oxygen carrier, which employs SiO2 as a carrier, NiO as an active component and CaO as an additive. The oxygen carrier comprises, by weight, 1-30% preferably 5-20% of the active component NiO, 1-20% preferably 1-10% of the additive CaO, and the balance of the carrier SiO2. A preparation method of the oxygen carrier is by successively loading CaO and NiO with SiO2 as the carrier by an impregnation method. The preparation method of the oxygen carrier is simple, the active component has small particle size, uniform dispersion and weak interaction force with the carrier, and the oxygen carrier has the advantages of high activity stability under high temperature and / or long period operation in chemical chain hydrogen production or combustion reaction process.

Description

technical field [0001] The invention relates to an oxygen carrier and its preparation method and application, belonging to the catalyst technology in the field of chemical looping combustion or hydrogen production. Background technique [0002] At present, with the rapid growth of population, the continuous deepening of industrialization and the increasing demand for energy, electricity generation based on fossil fuels not only meets the energy demand, but also brings great environmental hazards. CO emitted 2 lead to atmospheric CO 2 Concentrations are increasing, and the greenhouse effect is increasing, so CO from the combustion of fossil fuels 2 The control and reduction of emissions has been closely watched by the international community. [0003] CO with improved power generation efficiency and the use of other fuels with lower C / H and renewable resources 2 control route compared to coal and other fossil fuels during electricity production for CO 2 Recovery and stor...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): B01J23/78C10L10/00C01B3/40
CPCY02P20/52
Inventor 梁皓倪向前张舒冬张喜文
Owner CHINA PETROLEUM & CHEM CORP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap